Results 91 to 100 of about 30,646 (281)

Chaotic Scattering on a Billiard

, 1997
We investigate chaotic scattering on an attractive step potential with a quadrupolar deformation. The phase space features of the bound billiard are studied by using the notion of symmetry lines to find periodic orbits.
Daniels, Vincent J., Vallieres, Michel, Yuan, Jian Min   +2 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Parameter Identification Method for Transformer Winding Equivalent Networks Based on Frequency Response Analysis: A Comparative Study

Energies
Transformers are essential power transformation equipment in power systems. Winding deformation is one of the main forms of transformer winding faults, which may cause performance degradation or even overall damage to the equipment.
Ran Zhu, Fuqiang Ren, Zhaoyang Kang, Yonghao Zhang, Shujun Liu, Kaining Hou, Hongbin Wu, Jiawen Wang, Hongshun Liu, Qingquan Li   +9 more
doaj   +1 more source

Topological B-Model, Matrix Models, $\hat{c}=1$ Strings and Quiver Gauge Theories

, 2004
We study topological and integrable aspects of $\hat{c}=1$ strings. We consider the circle line theories 0A and 0B at particular radii, and the super affine theories at their self-dual radii.
, A. Iqbal, A. Kapustin, A. Okounkov, B. Feng, C. Itzykson, C.E. Beasley, D. Ghoshal, D.J. Gross, D.J. Gross, D.R. Morrison, E. Witten, E. Witten, E.J. Martinec, Harald Ita, Harald Nieder, Harish-Chandra, I.K. Kostov, I.R. Klebanov, I.R. Klebanov, J. Avan, J. McGreevy, K. Demeterfi, M. Aganagic, M. Aganagic, M. Bershadsky, M. Fukuma, M.R. Douglas, M.R. Douglas, N. Nekrasov, N. Seiberg, O. DeWolfe, P. Bouwknegt, R. Dijkgraaf, R. Dijkgraaf, R. Dijkgraaf, R. Gopakumar, R. Gopakumar, S. Alexandrov, S. Alexandrov, S. Dalley, S. Gukov, S. Mukhi, S.Y. Alexandrov, T. Takayanagi, Tadakatsu Sakai, V.A. Kazakov, X. Yin, Yaron Oz   +48 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Analysis and improvement of grounding transformer's ability to resist outlet short-circuit

电力工程技术
Currently, there are issues such as insufficient research on the physical characteristics of windings in grounding transformers under outlet short circuit conditions and a high number of damage accidents.
LI Jiayang, XIAN Richang, LI Fei, HU Yuyao, XUE Yongduan, WANG Wei   +5 more
doaj   +1 more source

On the Impact Energy Absorption of an Advanced High‐Strength Bilayer Steel Composite Consisting of Carbide‐Free Bainitic Steel and High‐Mn Twinning‐Induced Plasticity Steel

Advanced Engineering Materials, EarlyView.
Excellent combinations of strength and impact toughness are obtained in a bilayer composite of high‐strength carbide‐free bainitic (CFB) steel and high‐ductility twinning‐induced plasticity (TWIP) steel. The composite absorbs energy at small strains when the notch is placed on the TWIP side and at high strains when the notch is placed on the CFB side ...
Kendra Hawke, Xiaogang Li, Amir Partovi, Colin Scott, Fateh Fazeli, Hatem Zurob   +5 more
wiley   +1 more source

Dynamic behavior analysis of copper wire for predicting defects in the winding process of a motor coil

Nihon Kikai Gakkai ronbunshu
In recent years, efforts to promote energy conservation have become more active, and there is an increasing demand for high-efficiency motor coils. The efficiency of permanent magnet motors is closely related to manufacturing engineering.
Masato NAGANO, Taichi HIROSAWA, Hidefumi WAKAMATSU, Yoshiharu IWATA, Hironori SUZUKI, Takumi NAKAUE, Takahiro TANAKA   +6 more
doaj   +1 more source

Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets [PDF]

, 2009
This document is the Technical Design Report covering the two large spectrometer magnets of the PANDA detector set-up. It shows the conceptual design of the magnets and their anticipated performance. It precedes the tender and procurement of the magnets
Clarkson, T., Cowie, E., Downie, E., Erni, W., Hill, G., Hoek, M., Ireland, D., Kaiser, R., Keri, T., Lehmann, I., Livingston, K., Lumsden, S., MacGregor, D., McKinnon, B., Murray, M., Protopopescu, D., Rosner, G., Seitz, B., The PANDA collaboration, Yang, G.   +19 more
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